A coil of self inductance 2H carries a 2A current If direction of current is reversed in 1 sec., then induced emf in it :-

A coil of self inductance 4H carries a 10 A current. If direction of current is reversed in 2 sec, then induced emf in it

A coil of self-inductance 2H is carrying a current of 2A. Calculate the energy stored in the coil.

The value of self inductance of a coil is 5H. The value of current changes from 1A to 2A in 5 sec., then value of induced emf in it :-

The current in a collof self inductance 0.1 H varies from 2A to 5A in a time of 1ms. Find the Induced emf across the coil.

In a coil of self-induction 5 H, the rate of change of current is 2 A s^-1 . Then, e.m.f. induced in the coil is

Current changes in time interval 5 s from 7 A to 2 A in a coil of self inductance 0.1 H. Find the value of induced e.m.f. and the direction of induced current in the coil.

A coil has self inductance of 0.01H .The current through it is allowed to change at the rate of 1A in 10^-2s .The induced emf is

An inductor of 5 H inductance carries a steady current of 2A. How can a 50 V self-induced emf be made to appear in the inductor ?